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Products | Theory of Machines and Properties of Materials | Statics | TM 210

TM 210

Precision Friction Measurement Apparatus

Technical Description

The precision measuring unit is used to determine coefficients of friction experimentally. Several different pairs of materials with varying surface finishes can be investigated. During this process, the specimen under examination is stationary and the supporting friction surface is pulled past it. In this way a stable force measurement is made over the measuring range 0...2N with a resolution of 0.05N. The force dial gauge is equipped with an air damper to compensate slip-slap effects to a large degree. The supporting friction surface is driven using an electrical synchronous motor. The drive provides two constant speeds. The normal force can be changed by adding weights. The sturdy table unit was specially designed as a student experiment.

Learning Objectives / Experiments

· Qualitative static and sliding friction
· Friction forces as a function of
- The normal force,
- The materials used,
- The surface finish of the materials
· Friction forces as a function of the friction area
· Influence of the relative speeds of the friction materials on the friction forces

Features

Stationary friction specimen, supporting friction surface in motion
Improved precision by means of air damping

Alternative products

EM 026 -- Linear Motion Apparatus
TM 110.01 -- Supplementary Kit Inclined Plane and Friction
TM 200 -- Friction Measurement Apparatus
TM 225 -- Friction on Inclined Plane

Specification

[1] Table unit on mechanical friction, designed as a student experiment
[2] Friction body stationary, supporting friction surface in motion
[3] Feed speeds: 2.35 and 4.70m/min
[4] Air-damped precision dynamometer 0...2N, resolution 0.05N
[5] 2 friction bodies, 3 friction plates
[6] l x w x h 650x150x100mm

Technical Data

Drive: synchronous motor, 230V,~50Hz
Feed speeds: 2.35 and 4.70m/min
Dynamometer with damper: 0...2N, resolution 0.05N
Weights: 8x0.5N each

Dimensions and Weight

l x w x h : 650 x 150 x 100 mm
Weight : approx. 7 kg

Scope of Delivery

1 complete unit, 1 instruction manual

Order Details

040.21000 TM 210 Friction Measurement Apparatus